PT-2026-48351 · Espressif · Esp-Idf

Published 2026-06-10 · Updated 2026-06-10 · CVE-2026-45329

Mitre

CVSS v3.1

7.1

High

Base vector

AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.4 and 6.0, several ESP-TEE secure-service wrappers in esp secure services.c and esp secure services iram.c validated only some of the caller-supplied pointer arguments, leaving input pointer arguments unchecked. Because the underlying TEE-protected hardware peripherals (e.g., ECC, SHA, SPI) run in RISC-V machine mode (M-mode) with full address-space access, a caller could supply pointers into TEE-exclusive memory as inputs, causing the peripheral to read TEE memory and return results derived from it to the REE. Depending on the wrapper, the result contains raw bytes from TEE memory, a computed function of TEE memory recoverable through repeated calls, or a single bit per call that forms an oracle for incremental disclosure of TEE-resident sensitive data. This issue has been patched in versions 5.5.5 and 6.0.1.

Fix

Out of bounds Read

Information Disclosure

RCE

Weakness Enumeration

CWE-125

CWE-200

CWE-20

Related Identifiers

CVE-2026-45329

Affected Products

Esp-Idf

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-45329 · Security Note
• https://github.com/espressif/esp-idf/commit/145ba4c42dc8283054cfde9a1c3470db7399192f · Note
• https://github.com/espressif/esp-idf/commit/7867f4a57560bf9fc4a931e37ba02b7a3e9f406b · Note
• https://github.com/espressif/esp-idf/security/advisories/GHSA-w82j-7q63-7pqm · Note
• https://github.com/espressif/esp-idf/commit/eebabaff2fdc273b1530fe66e55fb3bcd181dfd6 · Note